失效

• Your action has rendered our contract invalid .
  你们的这种做法导致双方的合同失效。
• The medicine no longer has any effect .
  这药已失效了。
• Fracture is not the only way that a structure can fail .
  断裂并非结构失效的唯一形式。
• This certificate is invalid .
  这张证明已失效。
• My passport has run out .
  我的护照已失效。
• If the fees are not paid, then the patent is said to have lapsed .
  如果不付专利费，这项专利就告失效。
• He did not get any compensation because his insurance policy had lapsed .
  他因保险单失效未得任何补偿。
• These bombs had be dug out, and exploded or rendered harmless .
  必须把这些炸弹挖出，将它们爆破或使之失效。
• The making of false statements could result in the invalidation of the contract .
  提供虚假资料可能导致合同失效。
• The furnace used to heat a large storage room filled with potatoes suddenly failed .
  一间储藏马铃薯的仓库里，加热炉突然失效。